Rick,
My shaft is definitly the size of a 3/16 drill bit. I tried a 1/4 and that is way to big. The choke shaft is also a bit smaller dia than the throttle shaft? I don't have time to pull the t. shaft right now as "The Big R" is calling for a noon start. Going to be a wet dog today When I get home late tonight I'll take some detailed pics with the bits, etc.
Chris

I want to have Chris try it, I thought it over last night as I was soldering up the 6V to 12V up-convertor I'm designing. This is the circuit I told you & George about at CubTug and Rudi has shown some interest in it now.

Just so happens I "Spilled" some IC chips off my bench onto the floor last night, and saw one of the little "Washers" laying on the floor under my bench. The idea popped into my head, but it was almost midnight so I didn't get a chance to try it yet.

Chris, by the way, you might have to make "Two Sizes" of the custom retainer using two of the items, of course 2 different sized holes in the jig to form each one? That way the 2 piece's might "Sit Inside" each other?

Be sure to let me know if you try it, when I get home from work today I might give it a shot myself if you haven't already tried it?

Rick, if the idea works, I'll be sure to share it. Things have been a little hectic at home & work, and my digital camera is on the fritz too.